Johne



J. E. CHAMBERS.

COMBINED GAS STOVE AND FIRELESS COOKER.

APPLICATION FILED IuLY I3, I9Ie.

1 ,32 1 l 89 Patented Nov. '11, 1919.

vrunnin srarns ra'rnn'r orrion.

JOHN E. CHAMBERS, GF SHELBYVILLE, INDIANA, ASSIGNGB T0 CHAMBERS MANUFAC- TURING CCMPANY, OFSHELBYVILLE, INDIANA., A CORPORATION OF INDIANA.

Specification of Letters Patent.

Patented Nov. 11, 1919.

Application led July 13, 1916. Serial No; 109,147.

To all whom it may concern.'

Be it known that I, JOHN E. CHAMBERS, a citizen of the United States, lresiding atShelbyville, in the coiuity of Shelby and State of Indiana, have invented certain new land useful Improvements in Combined Gas- Stoves and Fireless Cookers, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates tocooking apparatus and more particularly to that type of apparatus known as combined gas stove and tireless cooker, embodying means whereby the apparatus may, at will, be either utilized as a gas stove or a i'ireless cooker, in which latter event the initial heat is obtained by the gas Haine, and the cooking operation continued to completion, after shutting 0H the ame, through the medium of the stored up heat previously generated ory derived from the use of a Haine.

It is one of the primary objects of the present invention to provide a novel construction of oven in an apparatus or stove of the fireless cooker type, said oven having associated therewith means whereby receptacles containing material to be cocked may be placed within the oven, side by side, and Y the material in the respective receptacles simultaneously subjected, the one to boiling, and the other to roasting or baking treatments.

A. further object of the invention resides in the provision of novel construction and arrangement of burners in operative association with the oven, with means whereby vthe burners in the respective sections of the o ven may be simultaneously lighted or eX- tinguished as desired.

More particularly the invention includes a novel construction of tireless cooker embodythe construction and arrangement of the -lvarious parts will be appreciated from the description to follow, which, for ai clear un into the respective burners.

details in such construction and arrangement of parts may be varied and still bewithin the spirit and contemplation of the invention.

' l In the drawings:

Figure 1 is a perspective view of a stove having my nnprcvements applied thereto, the

oven doors beingV open whereby to eX-pose the interior construction.

Fig. 2 is a horizontal section of the lower portion of the stove.

Fig. 3-is a vertical sectional View substantially on the line 3 3 of Fig. 2.

With more particular reference tov the drawings, wherein like reference numerals refer to corresponding parts throughout the several views, 1 are suitable standards or feet adapted to support the stove or range proper. 2 is a suitable top of any desired construction and having inserted therein gas burners 3 of any approved type, the latter being adapted to receive their supplyr of ygas through the medium of a conduit @having valves 5Yfor controllinothe supplyL of gas The conduit l connects with a vertically disposed section 6 which latter in turn connects with the main supply pipe 7 leading from any suitable soure.

The structure above described may be said to represent the upper portion of an ordinary type of gas range, but it is desirable to couple up with a range of this character an oven construction of novel design with operatively associated burners to the end that the oven section may be utilized as customary in ordinary gas ranges lor as a tireless cooker. VThe oven, generally ing inner and outer sections of suitable' maspeaking, preferably has walls compris' f terial such as sheet metal with the space able filling material interposed between the walls so that the door when in closed position constitutes in eect a continuation of the walls of a cooking chamber. The parts of the oven are so constructed and arranged as to afford a cooking chamber of increased proportions, it being desirable in the present instance to 'provide sutlicient area. within the oven for simultaneously boiling and roasting or baking operations. ln this connection the receptacles adapted to contain the materials for the above treatments are conveniently arranged side by side within the oven whereby they may be disposed, the one above one burner and the other above another burner, the latter to be presently described.

The walls of the oven are normally substantially closed throughout, the bottom wall 2a being provided with a suitable valve or damper controlled draft opening, not shown, and adapted to support thereon a suitable bottom plate 9 having an annular [lange 10 resting upon the bottom wall 2a. The plate 9 is perforated whereby to distribute air taken into the apparatus through the draft opening. A baffle plate or partition 11 forms in eifect the bottom of the oven and is spaced upwardly from the bottom wall 2a, previously referred to, a substantial distance whereby to provide, together with the side walls of the stove, a substantially closed burner chamber 12. The baffle plate is supported upon the perforated plate 9 by downwardly extending peripheral supports 13. The baffle plate or partition 11 is provided therein with a plurality of annular openings 14e, two being illustrated in the drawings, one at each side of the center of the bathe Plate and the walls of the plate 11 which surround said opening 14 being provided with suitable flanges or supporting lips 15 adapted to receive a detachable plate 16. The plates 16 have in the upper surface thereof suitable engaging parts 17 adapted for the reception of a suitable lifter or other tool whereby the plates 16 may be removed somewhat after the fashion of the ordinary stove lid. Likewise the bafHe'or partition plate 11 may be provided with a suitable engaging recess 18 for the reception of a similar tool to the end that the baille plate may be removed as desired. The removable baffle plate together with the removable lid or plate section 16 are essentially heat reservoirs or heat radiating plates.

1t is desirable to provide in the burner chamber 12 a plurality of burners, rthere being preferably a burner below each removable lid section 16 and said burners being preferably constructed as follows:

The burners are preferably of star shape comprising a hollow body portion 19 and a. plurality of tubular wings or projections 2O` having in the upper surface of the latter separated gas outlet ports 21. One of the projections 20 of one burner is placed in direct communication with acooperating projection 2O of the other burner through the medium of a tubular conduit 22 having therein a series of separated closely associated outlets to the end that assuming that a supply of gas is imparted to one burner the flame will be carried from the said burner along the conduit 22 thereby igniting the gas in the cooperating burner. In this way, assuming that gas is simultaneously fed to both burners, the latter will be simultaneously ignited. The burners receive their supply of gas from suitable conduit 24C projecting through the bottom wall 2EL of the apparatus and communicating with the gas supply conduit 7 in any desired manner, the supply of gas being controlled through the medium of a hand operated valve 25. A suitable vent for the oven is indicated at 26, the same being adapted to be controlled by a damper or closure, the closure actuating means being operatively associated with the handle of the valve 25 to the end that as the gas supply valve 25 is moved to open position, the vent valve will be simultaneously opened, whereas if the valve 25 is moved to a closed position, the vent valve will be simultaneously closed. This construction 0f vent valve actua-ting means and its coperative relationship with the gas supply valve is not deemed necessary to show herein in that the same may be of any desired construction for the purpose, such for instance as illustrated in my copending application Serial No. 618,047 filed March 21, 1911, entitled Combined gas stove and tireless cooker. The operation of the present construction may be reviewed as follows: l

1t has been seen that the oven is preferably somewhat wider than any ordinary standard construction of the character under consideration with the result thatJ the same will accommodate two or more utensils side by side. Assuming that it is desired to boil the material in the utensil in one side of the oven, a lid is removed and the kettle or other receptacle is placed directly over the flame of the burner below said lid. If it is desired to roast or bake, the lid remains in place at the base of the oven so that the heat will be distributed. 1n this manner boiling may be accomplished on one side of the oven and roasting or baking on the other. The burner herein provided is of peculiar advantage" in connection with the type of oven illustrated, for the reason that it is found necessary to heat the bottom plate of thev oven thoroughly in order that the same may remain heated after a considerable length of time. Should two separate burners be employed, and but one side of the oven heated at a time, the relative cold bottom. plate at the other side of the oven would tend to withdraw the heat from the heated side and materially limit the heat retention of the latter. WV here a plurality of burners are employed, however, as illustrated, it is important that they be operated simultaneously, or with a single valve and lighted, since the ordinary user could not be depended upon to light both burners were the burners independent. ciated that so soon as one of the burners are lighted in the construction embodied herein, the connecting tube or bridge of gas ports insures the carrying of the flame from one burner to another.

lVhat I claim is:

1. In a combined fireless cooker' and gas range, the combination of a substantially closed oven structure surrounded by walls of nonconducting material, a plurality of spaced radiating plates adjacent the base of the oven, a gas burner substantially centrally disposed beneath each radiating plate and extending throughout a substantial portion of the area thereof, said plates being independently removable whereby to at will expose either one of the burners to the interior of the oven, while keeping the other eX- cluded, in combination with a common fuel supply 'for both burners and means compelling the ignition of both of the burners, so that they at all times perform the heating function whether or not one or the other of the radiating plates is removed.

2. In a combination reless cooker and gas range, the combination of a substantially closed oven part surrounded 'by non-conducting walls, a. horizontally disposed metallic partition having peripheral depending supportingflanges, said plate being removable at will and forming in eect the top and sides of a burner chamber and the bottom of the oven, a plurality of disk-shaped radiating plates covering openings in said partition and constituting in eiect a continuation of the top surface of said partition, said disk-shaped plates having implement receiv- .Gopies o! this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

It has been appreing parts whereby the samemay be independently removed at will, a burner disposed below each of said disk-shaped radiating plates and adapted to extend overa substantial area thereof, a single gas supply means for the burners, and an elongated conduit arranged in the chamber below the partition, establishing direct connection between the burners and having a series of outlet openings in its upper surface.

3. In a combination reless cooker and gas range, the combination of a substantially closed oven having surrounding non-conducting walls and a bottom plate, a horizontally disposed metallic plate forming a partition and having depending peripheral flanges adapted to rest upon said bottom plate of the oven, the partition with said flanges forming a base for the oven, and an inclosing burner chamber 4between the partition and base plate, said partition having a plurality of detachable spaced removable annular heat radiating sections, a removable disk-shaped radiating plate mounted upon each of said annular sections, the said diskshaped plates and annular sections forming in effect a. substantially continuous unbroken surface with said partition, a burner dis-V posed below each of said disk-shaped plates whereby the flame therefrom will act upon substantially the entire area of said plates, a single gas supply means for the burners, an independent gas conduit establishing connection between the burners and having a series vof openings in the upper surface thereof directed toward said partition, and said partition with said annular sections and disk shaped radiating plates being removable as a whole whereby the burners and the independent gas conduit may have direct communication with the interior of the oven.

In testimony whereof I hereunto ax my signature in the presence of two witnesses.

JOHN E. CHAMBERS. Witnesses:

WM. F. MEIER, G, LAWS.

Washington, D. C. 

